APA-viite (7. p.)

Kotz, S., & Johnson, N. L. (1993). Process capability indices. Chapman and Hall.

Chicago-viite (17. p.)

Kotz, Samuel, ja Norman Lloyd Johnson. Process Capability Indices. Londres: Chapman and Hall, 1993.

MLA-viite (9. p.)

Kotz, Samuel, ja Norman Lloyd Johnson. Process Capability Indices. Chapman and Hall, 1993.